<template>
    <div class="app-container">
        <h1>讲师列表</h1>

    <!--查询表单-->
    <el-form :inline="true" class="demo-form-inline">
      <el-form-item>
        <el-input v-model="teacherQuery.name" placeholder="讲师名"/>
      </el-form-item>

      <el-form-item>
        <el-select v-model="teacherQuery.level" clearable placeholder="讲师头衔">
          <el-option :value="1" label="高级讲师"/>
          <el-option :value="2" label="首席讲师"/>
        </el-select>
      </el-form-item>

      <el-form-item label="添加时间">
        <el-date-picker
          v-model="teacherQuery.begin"
          type="datetime"
          placeholder="选择开始时间"
          value-format="yyyy-MM-dd HH:mm:ss"
          default-time="00:00:00"
        />
      </el-form-item>
      <el-form-item>
        <el-date-picker
          v-model="teacherQuery.end"
          type="datetime"
          placeholder="选择截止时间"
          value-format="yyyy-MM-dd HH:mm:ss"
          default-time="00:00:00"
        />
      </el-form-item>

      <el-button type="primary" icon="el-icon-search" @click="getTeacherListPage()">查询</el-button>
      <el-button type="default" @click="resetData()">清空</el-button>
    </el-form>

        <!-- 表格 -->
        <el-table
        :data="list"
        border
        fit
        highlight-current-row>

        <el-table-column
            label="序号"
            width="70"
            align="center">
            <template slot-scope="scope">
            {{ (current - 1) * limit + scope.$index + 1 }}
            </template>
        </el-table-column>

        <el-table-column prop="name" label="名称" width="80" />

        <el-table-column label="头衔" width="80">
            <template slot-scope="scope">
            {{ scope.row.level===1?'高级讲师':'首席讲师' }}
            </template>
        </el-table-column>


        <el-table-column prop="intro" label="资历" />

        <el-table-column prop="gmtCreate" label="添加时间" width="160"/>

        <el-table-column prop="sort" label="排序" width="60" />

        <el-table-column label="操作" width="200" align="center">
            <template slot-scope="scope">
            <router-link :to="'/teacher/edit/'+scope.row.id">
                <el-button type="primary" size="mini" icon="el-icon-edit">修改</el-button>
            </router-link>
            <el-button type="danger" size="mini" icon="el-icon-delete" @click="removeDataById(scope.row.id)">删除</el-button>
            </template>
        </el-table-column>
        </el-table>

        <!-- 分页组件 -->
        <el-pagination
            :current-page="current"
            :page-size="limit"
            :total="total"
            style="text-align: center; padding: 30px 0"
            layout="total, prev, pager, next, jumper"
            @current-change="getTeacherListPage"
        />
    </div>
</template>

<script>
// 引入调用teacher.js文件
import teacher from '@/api/edu/teacher'
export default {
    // data: {},
    data() {// 定义变量和初始值
        return {
            list: null,// 查询之后接口的返回集合
            current: 1,// 当前页
            limit: 4,// 每页显示的记录数
            teacherQuery: {},// 条件封装对象
            total: 0// 总记录数
        }
    },
    created() {// 页面渲染之前执行，一般调用methods定义的方法
        this.getTeacherListPage()
    },
    methods: {// 创建具体的方法，调用teacher.js定义的方法
        getTeacherListPage(current = 1) {
            this.current = current
            teacher.getTeacherListPage(this.current, this.limit, this.teacherQuery)
                .then(response => {
                    this.list = response.data.rows;
                    this.total = response.data.Total;
                })
        },
        // 清空（搜索条件）功能
        resetData() {
          // 1. 清空表单输入的条件数据
          this.teacherQuery = {}
          // 2. 查询所有数据
          this.getTeacherListPage()
        },
        // 删除讲师的方法
        removeDataById(id) {
          this.$confirm('此操作将永久删除讲师记录, 是否继续?', '提示', {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning'
          }).then(() => {
            // 调用后台删除的方法
            teacher.deleteByIdTeacher(id)
              .then(response => {
                // 提示信息
                this.$message({
                  type: 'success',
                  message: '删除成功!'
                });
                // 删除后回到列表页面
                this.getTeacherListPage()
              })
          });
        }
    }
}
</script>